We thank all the individuals who have contributed their computer time to make this project happen; Climate and Environmental Physics at the University of Bern for hosting and administrating a CPDN server; and Claudio Piani, Dave Frame, Ben Sanderson, Jacqueline Flückiger, Doug Nychka, Reinhard Furrer, Malte Meinshausen, and Thomas Stocker for stimulating discussions. Author RK was supported by the Swiss National Science Foundation. This study was supported in part by the Office of Biological and Environmental Research, U.S. Department of Energy, as part of its Climate Change Prediction Program. This work was also supported in part by the Weather and Climate Impact Assessment Initiative at the National Center for Atmospheric Research. We acknowledge the international modeling groups for providing their data for analysis: the Program for Climate Model Diagnosis and Intercomparison (PCMDI) for collecting and archiving the model data, the JSC/CLIVAR Working Group on Coupled Modelling (WGCM) and their Coupled Model Intercomparison Project (CMIP) and Climate Simulation Panel for organizing the model data analysis activity, and the IPCC WG1 TSU for technical support. The IPCC Data Archive at Lawrence Livermore National Laboratory is supported by the Office of Science, U.S. Department of Energy.
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